Synchronise the controller status more spread out inside a rendered frame:

* before rendering a background;
* before rendering sprites;
* while rendering more than 128 samples of audio at once ("Prefer fluid video");
* after every 16 scanlines of CPU execution instead of every 1;
* while waiting for an audio buffer to become available;
* while killing time between frames with fast-forward disabled.

Controller presses and releases are now combined in a DS button bitfield using a shorter 32-bit algorithm. See entry.cpp:NDSSFCAccumulateJoypad and #define ACCUMULATE_JOYPAD in the source.

This is still not suitable for playing platformers frame-perfectly, but it's much better than half a second of latency to press or release a button, and one still needs to press buttons a bit more than just light taps. I'd say 50 milliseconds is the latency now. Platformers requiring more precision can be played with frameskip 0.

DMA does not require double-buffered displaying, so synchronise the controller more often by disabling double-buffered displaying again.

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 854a285..c325437 100644
--- a/Makefile
+++ b/Makefile
@@ -71,7 +71,7 @@ DEFS   := -DSPC700_C -DEXECUTE_SUPERFX_PER_LINE -DSDD1_DECOMP \
           -DNO_INLINE_SET_GET -DNOASM -DHAVE_MKSTEMP '-DACCEPT_SIZE_T=size_t' \

           -DUNZIP_SUPPORT -DFOREVER_16_BIT_SOUND -DFOREVER_STEREO \

           -DFOREVER_FORWARD_STEREO -DNO_VOLATILE_SOUND \

-          -DSYNC_JOYPAD_AT_HBLANK -DDS2_DMA

+          -DACCUMULATE_JOYPAD -DDS2_DMA

 

 .PHONY: clean makedirs

 .SUFFIXES: .elf .dat .plg